chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 187253178 187253179 A G 23 GENIC homozygous 74634451 1 187253517 187253518 T A 23 GENIC homozygous 74634453 1 187261853 187261854 A T 29 GENIC homozygous 74634455